A head-mounted device can be automatically calibrated using an image sensor and at least one sensor system for detecting translation and rotation of the head-mounted device. Parameters under which the image sensor operates can be automatically calibrated when a detected translation remains below a predetermined translational threshold and a detected rotation remains below a predetermined rotational threshold for at least a predetermined period of time. The head-mounted device can be used by a medical professional in a surgical procedure.
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2. The head-mounted device according to claim 1, wherein the predetermined length of time is at least 2.0 s.
A head-mounted device is designed to monitor and analyze user behavior, particularly focusing on detecting and responding to specific actions or states. The device includes sensors to capture data related to the user's head movements, gaze direction, or other physiological signals. The system processes this data to identify patterns or triggers that indicate a particular condition, such as drowsiness, distraction, or fatigue. Once detected, the device can generate alerts, adjust settings, or take other corrective actions to mitigate the identified condition. A key feature of the device is its ability to measure the duration of a detected state or action. If the system determines that a specific condition persists for at least 2.0 seconds, it triggers a predefined response. This time threshold ensures that transient or accidental signals do not result in unnecessary interventions, improving the reliability of the device's operation. The device may also include additional sensors or algorithms to refine its detection accuracy, such as filtering out noise or distinguishing between similar but distinct behaviors. The overall goal is to provide real-time feedback or adjustments to enhance user safety, performance, or comfort in applications such as driving, medical monitoring, or industrial work environments.
3. The head-mounted device according to claim 1, wherein the predetermined translational threshold is at most 3.0 cm.
A head-mounted device is designed to detect and respond to translational movements of a user's head. The device includes a sensor system that measures head movements in three-dimensional space, including translational shifts along the x, y, and z axes. The device is configured to trigger a response when the detected translational movement exceeds a predetermined threshold. This threshold is set to a maximum of 3.0 cm, ensuring that only significant movements are registered. The device may also include additional features such as a display, audio output, or haptic feedback mechanisms to provide user feedback or adjust its operation based on the detected movement. The sensor system may use inertial measurement units (IMUs), cameras, or other motion-tracking technologies to accurately measure head position and movement. The device is particularly useful in applications where precise head tracking is required, such as virtual reality, augmented reality, or medical monitoring systems. By limiting the translational threshold to 3.0 cm, the device avoids unnecessary responses to minor movements while ensuring that meaningful shifts in position are detected and acted upon.
4. The head-mounted device according to claim 1, wherein the predetermined rotational threshold is at most 5.0°.
A head-mounted device includes a sensor system configured to detect rotational movement of the device and a processor that determines whether the detected rotational movement exceeds a predetermined rotational threshold. The device is designed to address the problem of unintended or excessive rotational movement, which can cause discomfort, disorientation, or operational errors in head-mounted systems. The predetermined rotational threshold is set to at most 5.0 degrees, ensuring that only significant rotational movements trigger a response from the device. The sensor system may include inertial measurement units (IMUs) or other motion-tracking sensors to monitor rotational displacement in real time. The processor evaluates the detected movement against the threshold and may initiate corrective actions, such as adjusting the device's orientation, providing haptic feedback, or alerting the user. This feature enhances user comfort and stability, particularly in applications like virtual reality (VR), augmented reality (AR), or medical devices where precise head positioning is critical. The system may also include calibration mechanisms to fine-tune the threshold based on user preferences or environmental conditions. By limiting the rotational threshold to 5.0 degrees, the device ensures responsiveness without overreacting to minor movements, improving overall usability and performance.
5. The head-mounted device according to claim 1, wherein the calibration includes automatically finding shutter speed and setting focal length.
A head-mounted device is designed to capture high-quality images or video while being worn by a user. The device includes an imaging system with a camera and a display for presenting visual content. A key challenge in such devices is ensuring optimal image quality under varying lighting conditions and distances, which requires precise calibration of camera settings. The invention addresses this by incorporating an automated calibration process that adjusts the camera's shutter speed and focal length without manual intervention. The shutter speed is automatically determined to balance exposure and motion blur, while the focal length is set to achieve proper focus based on the scene. This calibration ensures consistent image quality regardless of environmental factors, improving usability and performance for the user. The device may also include additional features such as image stabilization, low-light enhancement, and user interface controls for further customization. The automated calibration process simplifies operation, making the device more accessible for users who may not have technical expertise in camera settings. This technology is particularly useful in applications like augmented reality, virtual reality, and wearable cameras where real-time adjustments are critical.
6. The head-mounted device according to claim 1, wherein the head-mounted device is a pair of smartglasses.
A head-mounted device, specifically a pair of smartglasses, is designed to provide augmented reality (AR) or virtual reality (VR) experiences by overlaying digital content onto the user's field of view. The device includes a display system that projects images or data directly into the user's line of sight, allowing for hands-free interaction with digital information. The smartglasses may incorporate sensors such as cameras, microphones, and motion trackers to capture environmental data and user inputs, enabling real-time adjustments to the displayed content. Additionally, the device may feature wireless connectivity for data transmission and processing, as well as onboard computing capabilities to handle tasks like image recognition, navigation, and user interface rendering. The smartglasses are lightweight and ergonomically designed to ensure comfort during extended use. The technology addresses the need for portable, immersive computing solutions that enhance productivity, entertainment, and accessibility by integrating digital information seamlessly into the physical world.
7. The head-mounted device according to claim 1, wherein the predetermined length of time is at least 2.0 s; wherein the predetermined translational threshold is at most 3.0 cm; and wherein the predetermined rotational threshold is at most 5.0°.
A head-mounted device is designed to detect and respond to user movements, particularly for applications such as virtual reality, augmented reality, or medical monitoring. The device includes sensors to track the user's head movements, including both translational (linear) and rotational (angular) motion. The device is configured to trigger a specific action when the user's head remains relatively stable for a predetermined length of time, which is at least 2.0 seconds. Additionally, the device ensures that during this stable period, the translational movement of the head does not exceed 3.0 cm, and the rotational movement does not exceed 5.0°. These thresholds define the acceptable range of motion for the device to consider the head as stationary. The device may use these stability criteria to initiate functions such as calibration, user input detection, or safety mechanisms, ensuring accurate and reliable operation in dynamic environments. The thresholds are set to balance sensitivity and responsiveness, preventing false triggers while maintaining usability. The device may incorporate accelerometers, gyroscopes, or other motion-sensing technologies to measure head movement with precision. This design is particularly useful in applications where precise head tracking is critical, such as immersive virtual reality experiences or medical procedures requiring motion stability.
8. The head-mounted device according to claim 1, wherein the device is configured to perform the calibration if the detected translation is below the predetermined translational threshold and the detected rotation is below the predetermined rotational threshold for at least the predetermined length of time following the detection of a predetermined movement sequence of the head-mounted device, the detection being performed by the sensor system of the head-mounted device.
A head-mounted device includes a sensor system that detects translational and rotational movements of the device. The device is configured to perform a calibration process under specific conditions. The calibration is triggered when the detected translation is below a predetermined translational threshold and the detected rotation is below a predetermined rotational threshold for at least a predetermined length of time. This calibration condition is checked after the sensor system detects a predetermined movement sequence of the head-mounted device. The sensor system monitors the device's movements to ensure stability before initiating calibration, preventing disruptions during active use. The calibration process adjusts the device's sensors or internal parameters to maintain accuracy. The predetermined movement sequence may include a specific pattern or gesture, such as a shake or tilt, to signal the user's intent to calibrate. The thresholds and time duration ensure the device is stationary before calibration begins, improving reliability. This feature enhances the device's performance by ensuring accurate sensor readings and reducing calibration errors.
9. The head-mounted device according to claim 1, wherein the sensor system comprises at least one gyroscope.
A head-mounted device includes a sensor system with at least one gyroscope to detect rotational movement of the user's head. The device is designed for applications such as virtual reality, augmented reality, or motion tracking, where precise head movement detection is essential. The gyroscope measures angular velocity, allowing the system to track head orientation and rotation in three dimensions. This data is used to update the display or adjust the device's response in real time, ensuring accurate spatial awareness and interaction. The inclusion of a gyroscope enhances the device's ability to detect rapid or subtle head movements, improving user experience in immersive environments. The sensor system may also incorporate additional sensors, such as accelerometers or magnetometers, to provide a comprehensive motion tracking solution. The gyroscope's output is processed to filter noise and compensate for drift, ensuring reliable performance over extended use. This configuration enables the head-mounted device to deliver smooth and responsive tracking, critical for applications requiring high precision, such as gaming, medical simulations, or industrial training. The device's compact and lightweight design ensures comfort during prolonged use, while the sensor system's integration allows for seamless operation in dynamic environments.
10. The head-mounted device according to claim 1, wherein the sensor system comprises at least one accelerometer.
Display and sensor technology for augmented reality. This invention addresses the need for accurate motion tracking within a head-mounted device. Specifically, a head-mounted device is disclosed that includes a sensor system. This sensor system is configured to detect motion. A key component of the sensor system is at least one accelerometer. The accelerometer provides data that contributes to the overall motion detection capabilities of the device. This allows for more precise tracking of the user's head movements and potentially other physical interactions.
11. The head-mounted device according to claim 1, further comprising a display for displaying images, wherein a processor unit controls the display, and the display is configured to be positioned to display the images visible to a user wearing the head-mounted device on their head, wherein the processor unit is included in an external control unit, wiredly or wirelessly in communication with the head-mounted device and configured to control the head-mounted device.
A head-mounted device includes a display for presenting images to a user wearing the device on their head. The display is controlled by a processor unit located in an external control unit, which communicates with the head-mounted device either through a wired or wireless connection. The external control unit processes and manages the display content, enabling the head-mounted device to provide visual information to the user. This configuration allows for centralized processing and control of the display, potentially improving performance, flexibility, and ease of use. The system may be used in applications such as augmented reality, virtual reality, or other wearable display technologies where external processing is beneficial. The external control unit can handle complex computations, while the head-mounted device focuses on delivering the visual output to the user. This separation of processing and display components can enhance efficiency and reduce the size and weight of the head-mounted device.
12. The head-mounted device according to claim 11, wherein the display is configured to display images recorded by the image sensor.
A head-mounted device includes a display and an image sensor. The display is configured to show images captured by the image sensor, allowing a user to view real-time or recorded visual data. The device may also include a processor to process the images before display, ensuring clarity and accuracy. The image sensor captures visual information from the user's environment, which can be displayed on the display in real-time or stored for later viewing. This setup enables applications such as augmented reality, virtual reality, or live video recording. The device may further include additional components like a microphone for audio capture, a speaker for audio output, or a communication module for transmitting data. The display can be positioned in front of the user's eyes, providing an immersive viewing experience. The image sensor may be adjustable to focus on different distances or angles, enhancing versatility. The device may also include a power source, such as a battery, to operate independently. This configuration allows users to capture and view images hands-free, improving convenience and usability in various scenarios.
13. The head-mounted device according to claim 1, further comprising an external control unit, the external control unit wiredly or wirelessly in communication with the head-mounted device; wherein the external control unit comprises a power source for supplying power to the head-mounted device and wherein the head-mounted device does not comprise a power source.
A head-mounted device is designed for applications requiring compact, lightweight wearable technology, such as augmented reality, virtual reality, or medical monitoring. The device lacks an internal power source, which reduces weight and bulk but requires an external power supply. To address this, the device is paired with an external control unit that provides power via a wired or wireless connection. The external control unit serves as the primary power source, eliminating the need for batteries or internal power components within the head-mounted device itself. This design simplifies the device's structure while ensuring reliable power delivery. The external control unit may also facilitate additional functions, such as data processing, communication, or user input handling, enhancing the overall functionality of the head-mounted system. The wireless or wired connection between the device and the control unit ensures flexibility in usage, allowing for both tethered and untethered operation depending on the application. This configuration is particularly useful in scenarios where minimizing the weight and size of the head-mounted device is critical, such as in medical diagnostics, industrial inspections, or extended-use consumer electronics.
14. The head-mounted device according to claim 1, wherein the parameters are stored on a memory element forming part of an external control unit, the external control unit being wiredly or wirelessly in communication with the head-mounted device and configured to control the head-mounted device, and wherein the external control unit further comprises a processor unit configured to request the stored parameters and to apply the stored parameters to the image sensor.
A head-mounted device includes an image sensor and a processor configured to adjust parameters of the image sensor to compensate for optical distortions caused by the user's eye. The device captures images through the user's eye, and the parameters are adjusted to correct distortions introduced by the eye's optical properties. The parameters are stored on a memory element within an external control unit, which communicates with the head-mounted device either through a wired or wireless connection. The external control unit includes a processor that retrieves the stored parameters and applies them to the image sensor. This allows for dynamic adjustment of the image sensor's settings to improve image quality by compensating for individual variations in the user's eye. The external control unit may also manage other functions of the head-mounted device, such as power management or data processing, ensuring seamless integration of the distortion correction process. This system enhances the accuracy and reliability of images captured through the eye, which is particularly useful in medical or diagnostic applications where precise imaging is required.
15. The head-mounted device according to claim 14, wherein the memory element is part of the external control unit.
A head-mounted device includes a display system for presenting visual content to a user and a tracking system for determining the user's head position and orientation. The device also has a memory element that stores calibration data for the display system, which is used to correct distortions or misalignments in the displayed content. The memory element is integrated into an external control unit that communicates with the head-mounted device. This external control unit processes the calibration data and adjusts the display output accordingly. The tracking system may use sensors such as accelerometers, gyroscopes, or cameras to track head movements, and the calibration data ensures accurate alignment of the displayed content with the user's field of view. The external control unit may also handle additional processing tasks, such as image rendering or user input management, to enhance the overall performance of the head-mounted device. This configuration allows for centralized data storage and processing, improving efficiency and reducing the computational load on the head-mounted device itself. The system is particularly useful in augmented reality (AR) or virtual reality (VR) applications where precise visual alignment is critical for an immersive experience.
16. The head-mounted device according to claim 1, wherein the sensor system comprises one or more magnetometers.
A head-mounted device includes a sensor system with one or more magnetometers to detect magnetic fields. The device is designed for tracking head movements in three-dimensional space, particularly for applications in virtual reality, augmented reality, or other immersive environments. The magnetometers provide data on the orientation and position of the user's head by measuring changes in magnetic fields, which can be used to update the display or interact with virtual content in real time. The sensor system may also include additional sensors, such as accelerometers or gyroscopes, to enhance accuracy and reduce drift over time. The magnetometers help compensate for limitations in other sensors, such as gyroscopic drift or accelerometer noise, by providing a stable reference for orientation. The device may be worn on the head and is configured to process sensor data to render visual content that aligns with the user's movements, ensuring a seamless and immersive experience. The inclusion of magnetometers improves tracking reliability in environments where other sensor technologies may be less effective, such as in the presence of electromagnetic interference or when high precision is required.
17. Use of the head-mounted device according to claim 1 by a medical professional in a surgical procedure.
A head-mounted device is used in surgical procedures by medical professionals to enhance visualization and precision during operations. The device includes a display system that projects relevant medical data, such as imaging scans, patient vitals, or surgical guidance, directly into the user's field of view. The display is adjustable to ensure optimal visibility without obstructing the surgeon's natural line of sight. The device may also incorporate sensors to track hand movements or tool positions, providing real-time feedback to improve accuracy. Additionally, the device can communicate wirelessly with other medical systems, allowing seamless integration with surgical navigation tools or robotic assistance systems. The lightweight and ergonomic design ensures comfort during prolonged use, reducing fatigue for the medical professional. This technology addresses the need for improved situational awareness and precision in surgical environments, minimizing errors and enhancing patient outcomes. The device may also include voice or gesture controls to allow hands-free operation, further streamlining the surgical workflow. By providing critical information in an intuitive and non-intrusive manner, the head-mounted device supports medical professionals in performing complex procedures with greater efficiency and safety.
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July 27, 2022
April 2, 2024
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